README.rdoc refinements

Added some pre-emptive steps to avoid having to repeat the GCC 4.6
install.  Moved the Solr start to the best spot and recommended using
the full path to Virtuoso to avoid a conflict with PHP 5.3 as
recommended for eol_php_code.
Merge branch 'master' of github.com-usnea-nwilson-eol:EOL/eol